CD74HC138M
CD74HC138M is High-Speed CMOS Logic 3 to 8-Line Decoder/Demultiplexer Inverting/Noninverting manufactured by Texas Instruments.
- Part of the CD74HC138 comparator family.
- Part of the CD74HC138 comparator family.
CD54HC138, CD74HC138, CD54HCT138, CD74HCT138, CD54HC238, CD74HC238, CD54HCT238, CD74HCT238
SCHS147J
- NOVEMBER 1998
- REVISED NOVEMBER 2021
CDx4HC138, CDx4HCT138, CDx4HC238, CDx4HCT238 High-Speed CMOS Logic 3- to 8-Line Decoder/Demultiplexer Inverting and Noninverting
1 Features
- Select one of eight data outputs:
- Active low for '138
- Active high for '238
- l/O port or memory selector
- Three enable inputs to simplify cascading
- Typical propagation delay of 13 ns at VCC = 5 V, CL = 15 p F, TA = 25°C
- Fanout (over temperature range)
- Bus driver outputs: 15 LSTTL loads
- Standard outputs: 10 LSTTL loads
- Wide operating temp range: -55°C to 125°C
- Balanced propagation delay and transition times
- Significant power reduction pared to LSTTL logic ICs
- HC types
- 2 V to 6 V operation
- High noise immunity: NIL = 30%, NIH = 30% of
VCC at VCC = 5 V
- HCT types
- 4.5-V to 5.5-V operation
- Direct LSTTL input logic patibility, VIL= 0.8
V (Max), VIH = 2 V (Min)
- CMOS input patibility, Il ≤ 1µA at VOL, VOH
3:8 DECODER
OUTPUT...
